Home / 20,851.06-28,763.70-14,134.42

Finding the Fourth Proportional to 20,851.06, 28,763.70 and 14,134.42

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Solution

The fourth proportional to 20,851.06, 28,763.70 and 14,134.42 is: 19,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,851.06 : 28,763.70 = 14,134.42 : x
  2. Step 2: Convert to fraction form
    20,851.06/28,763.70 = 14,134.42/x
  3. Step 3: Cross multiply
    20,851.06x = 28,763.70 × 14,134.42
  4. Step 4: Simplify right side
    20,851.06x = 406,558,216.55
  5. Step 5: Solve for x
    x = 406,558,216.55/20,851.06
  6. Step 6: Final answer
    x = 19,498.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.